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Beam Polarization

Beam Polarization


Accurate determination of the beam polarization is important to the G0 experiment. Results and analysis of polarization data relevant to G0 are discussed on this page.


Results

First Engineering Run (Fall 2002 - Winter 2003)

During the first G0 engineering run a thorough Møller study was performed. This study consisted of two parts, commissioning and systematics, as outlined in this document. The purpose of the commissioning phase was simply to insure the operation of the polarimeter with the G0 beam structure. The purpose of the systematics phase was to look at possible sources of systematic error in the polarization measurement. A run plan for the systematics measurements is shown here. Plots of results and some description can be found here.


Low Energy Polarimeter Operation

During the back angle phase of the G0 experiment the incident beam energy will be quite low (by JLab standards), from 424 MeV up to 799 MeV. The polarimeter was not designed to operate at these low energies. Some physical changes will be required to make it operate at the very lowest energies.

Required Changes



Page maintained by Damon Spayde (spayde@jlab.org).
Last updated on 28 April 2003.